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LM2576D2T-ADJ

更新时间： 2024-09-27 22:22:15
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 稳压器开关式稳压器或控制器电源电路开关式控制器
页数 文件大小 规格书
27页 423K
描述
EASY SWITCHERE⑩ 3.0 A STEP-DOWN VOLTAGE REGULATOR

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中文翻译

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LM2576D2T-ADJ 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：TO-263,Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.81模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：VOLTAGE-MODE最大输入电压：40 V
最小输入电压：7 V标称输入电压：12 V
JESD-30 代码：R-PSSO-G5JESD-609代码：e0
长度：10.02 mm功能数量：1
端子数量：5最大输出电流：3 A
封装主体材料：PLASTIC/EPOXY封装代码：TO-263
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
认证状态：Not Qualified座面最大高度：4.826 mm
表面贴装：YES切换器配置：BUCK
最大切换频率：63 kHz端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：1.7 mm
端子位置：SINGLE宽度：9.1945 mm
Base Number Matches：1

LM2576D2T-ADJ 数据手册

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Order this document by LM2576/D  
EASY SWITCHER  
3.0 A STEP–DOWN  
VOLTAGE REGULATOR  
The LM2576 series of regulators are monolithic integrated circuits ideally  
suited for easy and convenient design of a step–down switching regulator  
(buck converter). All circuits of this series are capable of driving a 3.0 A load  
with excellent line and load regulation. These devices are available in fixed  
output voltages of 3.3 V, 5.0 V, 12 V, 15 V, and an adjustable output version.  
These regulators were designed to minimize the number of external  
components to simplify the power supply design. Standard series of  
inductors optimized for use with the LM2576 are offered by several different  
inductor manufacturers.  
Since the LM2576 converter is a switch–mode power supply, its efficiency  
is significantly higher in comparison with popular three–terminal linear  
regulators, especially with higher input voltages. In many cases, the power  
dissipated is so low that no heatsink is required or its size could be reduced  
dramatically.  
SEMICONDUCTOR  
TECHNICAL DATA  
T SUFFIX  
PLASTIC PACKAGE  
CASE 314D  
1
Pin 1. V  
in  
2. Output  
5
3. Ground  
4. Feedback  
5. ON/OFF  
A standard series of inductors optimized for use with the LM2576 are  
available from several different manufacturers. This feature greatly simplifies  
the design of switch–mode power supplies.  
The LM2576 features include a guaranteed ±4% tolerance on output  
voltage within specified input voltages and output load conditions, and ±10%  
on the oscillator frequency (±2% over 0°C to 125°C). External shutdown is  
included, featuring 80 µA (typical) standby current. The output switch  
includes cycle–by–cycle current limiting, as well as thermal shutdown for full  
protection under fault conditions.  
TV SUFFIX  
PLASTIC PACKAGE  
CASE 314B  
1
5
Heatsink surface  
connected to Pin 3.  
Features  
• 3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions  
• Adjustable Version Output Voltage Range, 1.23 to 37 V ±4% Maximum  
Over Line and Load Conditions  
D2T SUFFIX  
PLASTIC PACKAGE  
CASE 936A  
• Guaranteed 3.0 A Output Current  
• Wide Input Voltage Range  
• Requires Only 4 External Components  
• 52 kHz Fixed Frequency Internal Oscillator  
• TTL Shutdown Capability, Low Power Standby Mode  
• High Efficiency  
1
2
(D PAK)  
5
Heatsink surface (shown as terminal 6 in case outline  
drawing) is connected to Pin 3.  
• Uses Readily Available Standard Inductors  
• Thermal Shutdown and Current Limit Protection  
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE  
LM2576–3.3  
LM2576–5  
3.3 V  
5.0 V  
Applications  
LM2576–12  
LM2576–15  
LM2576–ADJ  
12 V  
15 V  
1.23 V to 37 V  
• Simple High–Efficiency Step–Down (Buck) Regulator  
• Efficient Pre–Regulator for Linear Regulators  
• On–Card Switching Regulators  
• Positive to Negative Converter (Buck–Boost)  
• Negative Step–Up Converters  
ORDERING INFORMATION  
Operating  
Temperature Range  
Device  
Package  
• Power Supply for Battery Chargers  
LM2576T–XX  
LM2576TV–XX  
LM2576D2T–XX  
Straight Lead  
Vertical Mount  
Surface Mount  
T
J
= –40° to +125°C  
XX = Voltage Option, i.e. 3.3, 5, 12, 15 V; and ADJ for  
Adjustable Output.  
This document contains information on a new product. Specifications and information herein  
Motorola, Inc. 1997  
Rev 0  
are subject to change without notice.  
1234567...27

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